IT'S HYDROLOGICAL POP-UP

Discover the "hows" of hydropower with this simple, pop-up model of a hydroelectric project. It's easy to read, understand, and assemble. This hand-out covers the benefits of hydro, how hydro works, and the hydrologic cycle. If you bring the scissors and tape, the children will build it. Ideal give-away for fairs, workshops, and open houses. Grades K-6 $250 for master.